He joined Emelec of Guayaquil when he was eleven, and went on to play for the club at a professional level. He was noted for his good finishing ability and his flamboyant mask celebration was enjoyed by many. In 2004 he moved to Saudi Arabian club Al-Nasr, where he had trouble settling and eventually moved back to Ecuador to play for El Nacional of Quito.
He was first selected for the Ecuadorian national team in 2004; however he did not play any matches that year due to an injury. By 2005, he had recovered and made some impressive displays both for his club and country.
Tenorio died in May, 2005 due to an automobile accident suffered when he was travelling to Quevedo, to visit his family. The accident happened three days after he played for his country in a 1-0 win over Paraguay, which was a friendly match played in New York. The car in which he was travelling collided with a gas truck on the Santo Domingo-Quevedo road. He was twenty-five.
As a homage to Tenorio during World Cup 2006, the footballer and former team-mate of Tenorio, Iván Kaviedes, pulled on a Yellow 'Spiderman' mask after scoring the third goal of Ecuador's triumphant 3-0 win over Costa Rica.
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